Assuming that the non-disjunction event occurs during meiosis, analyze the following statements: I- Non-disjunction is the failure of homologous c...

Assuming that the non-disjunction event occurs during meiosis, analyze the following statements:
I- Non-disjunction is the failure of homologous chromosomes to separate during meiosis I or the failure of sister chromatids to separate during meiosis II.
II- Non-disjunction can occur in both meiosis I and meiosis II.
III- Non-disjunction can lead to the formation of gametes with an abnormal number of chromosomes.
IV- Non-disjunction can lead to genetic disorders such as Down syndrome.
V- Non-disjunction events occur during the S phase of the cell cycle, that is, during chromosome duplication.
Choose the correct alternative:

I- Non-disjunction is the failure of homologous chromosomes to separate during meiosis I or the failure of sister chromatids to separate during meiosis II.
II- Non-disjunction can occur in both meiosis I and meiosis II.
III- Non-disjunction can lead to the formation of gametes with an abnormal number of chromosomes.
IV- Non-disjunction can lead to genetic disorders such as Down syndrome.
V- Non-disjunction events occur during the S phase of the cell cycle, that is, during chromosome duplication.
a. I, III and V are correct.
b. I, IV and V are correct.
c. II and IV are correct.
d. II, III and IV are correct.
e. III, IV and V are correct.